Materials and characteristics of light steel structure&colon; 1&period; Main frame is made of hot roll H-style steel or welded H-style2&period; Fast construction&comma; easy installation&comma; time saving&comma; labor-saving and stable structure&semi; 3&period; Steel structure construction is light weight&comma; high strongth&comma; large span and can improve higher space efficiency&semi; 4&period; It can be prefabricated and customize design&comma; and earthquake proofing&comma; waterproofing&comma; anti-corrosion&comma; beautiful appearances&period; It has a good ability to assemble at site&comma; and it is free in designing&comma; partitioning and transportation&period;&semi; 5&period; It has a low foundation cost&comma; energy conservingand&comma; environmental protection&comma; and it can be recycled and be use circularly&comma; 6&period; Steel structure construction can be widely used as workshop&comma; warehouse&comma; restaurant&comma; gymnasium&comma; hypermarket&comma; leisure veues&comma; ect&period;